JP3968175B2 - Protective armor for transformer pole work - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a simple protective device for ensuring the safety of an operator when constructing a communication line or the like with a power pole (transformer pole) to which a pole transformer is attached.
[0002]
[Prior art]
FIG. 9 is a diagram showing a transformer column to which a communication line is attached. In the figure, (50) is a utility pole, (51) is a pole transformer, (52) is a charging section (primary cutout and surrounding charging section), and (53) is a charging section support arm. Further, (61) is a communication line, and (60) is a hanging line for attaching the communication line (61).
[0003]
When installing a communication line (61) such as a telephone line, it is installed at a position below the distribution line, but in a transformer post equipped with a pole transformer (51), a charging part is located below the pole transformer. (52) is provided, and care must be taken not to come into contact with this charging part during construction of the communication line. In particular, when it becomes a complicated utility pole with various equipment, the distance between the charging part (52) and the mounting part of the communication line (61) is shortened, and it is necessary to approach the charging part (52) during work. .
[0004]
Therefore, in order to prevent workers from coming into contact with the charging unit (52) and causing an electric shock accident during the construction of communication lines, etc., the charging unit is connected with a resin tube called a polycan for the safety of the operator prior to the construction. It is necessary to carry out construction work to cover separately, or to carry out work to install protective equipment, accompanied by a live line worker with the construction of the communication line.
[0005]
However, this polycan is not always sufficient as an electric shock prevention measure, and it takes time to attach and remove it.
[0006]
In addition, since the distribution line is energized, it is necessary to qualify for hot-wire work for installation work of poly pipes and protective equipment that are close to the live parts that are energized. Generally, communication workers have qualification for live-line work. Therefore, those who have qualifications for hot-line work must perform the work separately from the construction of the communication line, which is costly and time consuming.
[0007]
[Problems to be solved by the invention]
Therefore, in order to reduce the cost and time required for the construction of the communication line, only the communication construction worker who is not qualified for the live line work can easily install the transformer pole work without approaching the live parts that are energized. Tools are required.
[0008]
[Means for Solving the Problems]
The transformer pole work protector according to claim 1 of the present invention includes a support fitting (1) that can be attached to a utility pole (50), and an insulating sheet material (20) that can be attached to the support fitting (1). a transformer pole working armor Ru comprising a sheet material (20) is supported by a support rod having an insulating property (10), said support rod (10) is provided on both sides of the support bracket (1) mounted on the support rod attachment arms (2), the base of the support rod mounting arm portion (2) has a gear attached, the pawl portion of the ratchet pawl (6) by meshing with the gear, the support rods A transformer pole work protective device characterized by a ratchet mechanism in which the mounting arm (2) rotates only in the direction of raising the tip and does not rotate in the opposite direction .
[0009]
According to this, since the insulating sheet material (20) is positioned between the charging unit and the worker, the communication construction worker is not in contact with the charging unit (52) and is safe.
[0011]
In addition, since the seat material (20) can be flipped up by rotating the support rod mounting arm (2), it is possible to keep a safe distance from the charging section (52) during the seat material installation work. The risk of contact can be greatly reduced. A gear is attached to the base of the support rod mounting arm (2) , and the claw portion of the ratchet pawl (6) meshes with this gear, so that the support rod mounting arm (2) only moves upward. It rotates so that it does not rotate in the opposite direction. Therefore, when the support rod mounting arm portion (2) is rotated to a preferred angle, it is fixed at that position.
[0012]
The transformer pole work protector according to claim 2 is the transformer pole work protector according to claim 1, and a mounting auxiliary belt (30) for temporarily fixing the support fitting (1) to the utility pole (50), Auxiliary mounting belt with a fastening belt (31) for fixing the support bracket (1) to the utility pole (50) and a fall prevention rope material (32) for preventing the sheet material (20) from dropping (30) and the fall prevention rope material (32) are provided with a locking tool at both ends of a rope, belt or other string material, and the support bracket (1) is an attachment auxiliary belt (30) and a fall prevention rope material ( 32) has a locking port (4) for locking the locking tool and a hook portion (5) for preventing the fastening belt (31) from coming off the support fitting (1). It is characterized by being.
[0013]
According to this, since the support metal fitting (1) can be temporarily fixed to the lower position of the pole transformer, it is easy to perform the fixing work with the tightening belt. In addition, even if the support bracket (1) or the sheet material (20) is removed after installation, the support bracket (1) is held temporarily by the auxiliary mounting belt (30), and the sheet material (20) is supported. Since it is connected by the metal fitting (1) and the fall prevention rope member (32), it can be prevented from falling downward.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
The present invention will be described below with reference to preferred embodiments.
[0015]
[Example]
FIG. 1 is a plan view of a support fitting used in this embodiment, and FIG. 2 is a right side view of the same. FIG. 3 is a plan view of the sheet member.
[0016]
In the figure, (1) is a support metal fitting body, and (1a) and (1b) are utility pole contact portions that come into contact with the utility pole when the support fitting is fixed. In the examples, stainless steel was used as the material.
[0017]
(2) is a support bar mounting arm portion provided on both sides of the support metal body (1), and is for supporting the support bar (10) made of an insulating material such as FRP. (2a) is a coupler for inserting the support rod (10), and (2b) is a lock for fixing the inserted support rod (10). (3) is a place where the support bar mounting arm part (2) is attached to the support bracket body (1), and each support bar mounting arm part (10) can be rotated around the mounting part (3) as an axis.
[0018]
(4) is a locking port provided in the support bracket body (1), and is provided to lock the locking tool provided at the end of the auxiliary mounting belt (30) or the fall prevention rope material (32). It has been. (5) is a hook portion for preventing the fastening belt (31) from being detached from the support fitting during fixing.
[0019]
(20) is a sheet material made of an insulating material such as EVA, and in the examples, the color was yellow so as to stand out during the work. (21) is a support rod insertion portion provided at the edge of the sheet material (20), and the sheet material (20) and the support rod (10) are attached by inserting the support rod (10) into this portion. be able to. (22) is a rope attachment portion provided for attaching the fall prevention rope material.
[0020]
[Usage procedure]
Next, a procedure for using the protective equipment of the embodiment will be described. 4-7 is the figure which showed the procedure of attachment of a protector.
[0021]
After ascending the pillar and detecting electric leakage, the support fitting (1) is temporarily fixed using the auxiliary mounting belt (30) as shown in FIG. The support metal fitting (1) is temporarily fixed so that the utility pole abutting portions (1a) and (1b) are on the utility pole side, and the support bar mounting arm portion (2) faces the charging portion (52). However, at this stage, it is not necessary to bring the utility pole contact portions (1a) and (1b) into contact with the utility pole (50).
[0022]
The auxiliary mounting belt (30) is provided with a locking device (30a) at both ends of a rope or belt, and the rope passes over the charging unit support arm (53) so that both ends The locking tool (30a) is locked in two locking ports (4) provided on the upper part of the support metal fitting (1). Thus, the support fitting (1) is temporarily fixed so as to be hung from the charging unit support arm (53) by the auxiliary mounting belt (30). The mounting height of the support fitting (1) can be adjusted by adjusting the length of the auxiliary mounting belt (30).
[0023]
It should be noted that the work can be performed safely and easily if the work is performed by ascending the pillar from the house side (the back side of the transformer). In the embodiment, the charging unit support arm 53 is temporarily fixed, but may be attached to a communication line band or the like.
[0024]
Next, as shown in FIG. 5, the support fitting (1) is fixed by the fastening belt (31). Fixing is performed by turning the fastening belt (31) around the utility pole (50) and fastening the support metal fitting (1). The fastening belt (31) is placed at a position between the hook part (5) and the support bar mounting arm part (2) of the support bracket (1), so that it will be displaced from the support bracket (1). There is nothing wrong. When the fastening belt (31) is tightened, the utility pole abutting portions (1a) and (1b) abut on the utility pole (50), and the support fitting (1) is fixed without rattling.
[0025]
Check that there is no mounting height or rattling after fixing. Even if an accident occurs such as the fastening belt (31) loosening and coming off, the support bracket (1) is connected to the charging unit support arm (53) by the auxiliary mounting belt (30) and falls. It is safe.
[0026]
Next, as shown in FIG. 6, the sheet material (20) is attached to the support rod attachment arm (2) of the support fitting (1). Prior to attachment, the support bar (10) is inserted into the support bar insertion part (21). Then, one end of the fall prevention rope member (32) is attached to the rope attachment portion (22) of the sheet member (20), and the other end is engaged with the engagement port (4) of the support fitting (1). As a result, even if the sheet material (20) is detached from the support rod mounting arm (2), the sheet material (20) is not dropped because it is connected by the fall prevention rope material (32), so it is safe. It is.
[0027]
Insert the support rod (10) into the coupler portion (2a) until it clicks, and turn the lock portion (2b) to lock the support rod attachment arm (2) so that it faces downward from the horizontal. Since there are two support rods (10 on both sides in total), this support rod attachment operation is performed twice to fix the sheet material (20) to the support rod attachment arm portion (2).
[0028]
Next, as shown in FIG. 7, the support bar mounting arm portion (2) is rotated so as to have an angle equal to or higher than the horizontal, and is fixed when the desired angle is obtained. Rotation is easy to work by holding the base of the support rod (10) (support rod mounting arm (2) side). You can rotate the support rod mounting arms (2) on both sides simultaneously, It may be rotated one by one. The support bar (10) and the sheet material (20) are insulative, but when rotating the support bar mounting arm (2), make sure that they do not come into contact with the charging part (52). Do.
[0029]
The support rod mounting arm portion (2) is attached by a ratchet mechanism. That is, a gear is attached to the base of the support rod mounting arm (2), and one of the claw portions of the ratchet pawl (6) meshes with this gear, so that the support rod mounting arm (2) is unidirectional. It rotates only (in this case, the direction in which the tip of the support rod mounting arm (2) is raised), and does not rotate in the opposite direction. Therefore, when the support rod mounting arm portion (2) is rotated to a preferred angle, it is fixed at that position.
[0030]
Note that the ratchet pawl (6) does not move unless it is intentionally pushed, so it will not come off the gear on its own, but a stopper (not shown) that fixes the ratchet pawl (6) for further safety May be attached.
[0031]
Then, it is confirmed that there is no live line exposed in the vicinity, and the armor mounting operation is completed. FIG. 8 is a view showing the transformer column to which the protective equipment of the embodiment is attached from another angle.
[0032]
Since the sheet material (20) covers the lower side and the side of the charging unit (52) by attaching the protective equipment, the operator and the charging unit (52) even if communication work is performed under the charging unit (52). The sheet material (20) is positioned between the two to ensure the safety of the operator. In addition, since the protective work can be installed without approaching the charging section (52), it is possible to easily perform the communication line work of the transformer pillar even by a communication worker who is not qualified for live work. it can.
[0033]
The protective equipment is removed after the construction of the communication line is completed, but the removal is performed in the reverse order of installation. When rotating the support rod mounting arm (2) during removal (after releasing the stopper if there is a ratchet pawl (6) stopper), push the ratchet pawl (6) upward to oppose the ratchet pawl. The claw part on the side is meshed with the gear. As a result, the support bar mounting arm portion (2) can be rotated in a direction opposite to that during mounting (a direction in which the tip of the support bar mounting arm portion (2) is lowered). Protective equipment is economical because it can be used repeatedly.
[0034]
【The invention's effect】
As described above, according to the present invention, it is not necessary to install protective equipment by a person qualified for hot-line work separately from the construction of the communication line. The construction period can be shortened and the construction cost can be reduced. And it is possible to sufficiently ensure the safety of the worker.
[Brief description of the drawings]
FIG. 1 is a plan view of a support fitting used in the present embodiment.
FIG. 2 is a right side view of a support fitting used in the present embodiment.
FIG. 3 is a plan view of a sheet member.
FIG. 4 is a diagram (part 1) illustrating an attachment procedure of the embodiment.
FIG. 5 is a diagram (part 2) illustrating an attachment procedure of the embodiment.
FIG. 6 is a view (No. 3) showing the mounting procedure of the embodiment.
FIG. 7 is a diagram (part 4) illustrating an attachment procedure of the embodiment.
FIG. 8 is a view showing a transformer column to which the protective equipment of the embodiment is attached.
FIG. 9 is a diagram showing a transformer column to which a communication line is attached.
[Explanation of symbols]
(1) Support bracket (main body)
(2) Support bar mounting arm
(2a) Coupler part
(2b) Lock part
(4) Locking port
(5) Hook part
(10) Support rod
(20) Sheet material
(30) Auxiliary mounting belt
(31) Fastening belt
(32) Fall prevention rope material
(50) Telephone pole
(52) Charging part
(61) Communication line

Claims (2)

A support bracket attachable to a utility pole, a transformer pole working armor Ru comprising a sheet material having a possible insulation attached to the support bracket,
The sheet material is supported by an insulating support rod,
The support bar is attached to a support bar mounting arm portion provided on both sides of the support bracket,
A gear is attached to the base of the support rod mounting arm, and when the ratchet pawl engages with this gear, the support rod mounting arm rotates only in the direction of raising the tip, and rotates in the opposite direction. Transformer pole work protective equipment characterized by a ratchet mechanism that does not . A mounting auxiliary belt for temporarily fixing the support bracket to the utility pole, a tightening belt for fixing the support bracket to the utility pole, and a fall prevention rope material for preventing the sheet material from falling. And the fall-preventing rope material has a locking tool at both ends of the string material, and the support bracket has a locking port for locking the mounting auxiliary belt and the locking device of the fall-preventing rope material, and the tightening The protector for transformer pole work according to claim 1, further comprising a hook portion for preventing the belt from being detached from the support metal fitting.

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